Caspar dahm



(No Model.)

0. HM. I MAGHINE FOR. MAKING SFER Q NG PAPER. No. 463,442, Pate Nov. 17,1891.

1 E IV 70/? 2 iii WITNESSES:

UNITED STATES PATENT OFFICE.

OASPAR DAHM, OF MUNSTER, GERMANY.

MACHINE FOR MAKING TRANSFER GRAlNlNG-PAPER.

SPECIFICATION forming part of Letters Patent No. 463,442, dated November17, 1891.

Application filed ay 1891. Serial No. 391,890. (No model.)

To all whom it may concern:

' Be it known that 1, CASH DAHM, a resident of Munster, in the Kingdomof Prussia and Empire of Germany, and a citizen of the German Empire,have invented certain new and useful Improvements in Machines for MakingTransfer Graining-Paper, of which the following is a specification.

This invention relates to an improved machine for making transfergraining-paper for the use of painters and others, by which theexpensive hand-graining in imitation of wood is dispensed with and bywhich any desired kind of grain can be produced at a considerable savingin time and labor; and it consists of a machine for making transfergrainingpaper, which comprises a pattern-cylinder, a transfer-cylinderworking in contact therewith, guide-rollers for the paper, a feed devicefor moving the paper over the transfercylinder, a cleaning-roller incontact with the transfer-roller, and a heating device below thetransfer-roller, as will be fully set forth hereinafter, and finally bepointed out in the claim.

The accompanying drawing represents a vertical longitudinal section ofmy improved machine for making transfer graining-paper.

Referring to the drawing, A represents a pattern-cylinder, to which therequired color is supplied from a color-fountain B by a nu mber ofdistributing-rollers b b, which transfer the ink to the surface of thepattern-cylinder. At the lower part of the pattern-cylinder are arrangedtwo blades or doctors cm, which are set close to the surface of thepattern-cylinder, so as to take up the surplus color from the same. Thepattern-cylinder A is made of brass or other suitable material and isengraved according to the grain of the wood which is to be produced onthe transfer-paper, the grain being engraved by hand or produced in anyother approved manner on the surface of the pattern-cylinder. Atransfer-cylinder O is rotated in contact with the pattern-cylinderA andat the same speed therewith, it being made of the same diameter as thepattern-cylinder. It is preferably made of elastic material similar tothe inkingcylinders employed in printing-presses.

Below the transfer-cylinder O is arranged a heating device (I, by whichthe surface'of the transfer-cylinder C is kept warm, a suitable guarddevice at, of corrugated sheet metal or gauze, being interposed betweenthe cylinder and the heating device, so as to prevent the direct contactof the flame with the transfer-cylinder and injury to the latter. Theheating of the surface of the transfercylinder 0 has the advantage thatthe color is more readily taken up by the same from the engravedpattern-cylinder and transferred to the paper D, which is supplied froma suitable roll D, and which is held in contact with thetransfer-cylinder O by means of a guide-roller D A cleaning-roller E isrotated in contact with the surface of the transfer-cylinder, preferablyat a somewhat greater speed than the same. This roller is made of steelor other suitable metal, and serves by its contact with thetransfer-cylinder to take up any color which remains thereon. This coloris readily taken up by the roller E, owing to te difference oftemperature between it and the surface of the transfer-cylinder, thehigher temperature of the transfer-roller C permitting the readytransfer of the surplus color from itssurface to the surface of themetal roller E, which is gradually covered with a thin film of color,that is removed therefrom from time to time. The transfer-cylinder O isthereby in a condition to be favorably acted on by the heating devicebelow the same, so as to be ready for receiving and transferring thecolor supplied thereto by the pattern-cylinder A.

The paper D, to which the desired grain has been transferred in theproper color, is conducted from the guide-roller D over a secondguide-roller D to a feed device F, which is arranged in contact with theunderside of the paper and composed of an open boxf, to which suction isapplied by a suitable apparatus, and of an endless perforated belt fthat is guided over suitable rollers f in said box, one of the rollersbeing rotated by a beltand-pulley transmission. By the suction exertedon the paper by the suction apparatus the paper is drawn into contactwith the endless perforated belt f and moved simultaneously forward bythe motion imparted to the belt, so that a feeding device for the pa peris obtained without the use of feed-rollers, which are not-applicable inthis case, as the upper surface of the paper is covered with the moistgrain transferred thereto. The feed motion of the paper is so regulatedby varying the speed of the motion-transmitting belt that it is movedforward at the same speed as the transfer-cylinder, so that the designon the paper is not blurred or injured, but is transferred thereto in aclear and distinct manner.

From the feed device F the paper is transferred to the drying-room, inwhich it is hung up on sticks supplied from a stick-box to an endlessbelt in the manner well known in the printing of wall-paper, glazedpaper, and the like. The speed of the mechanism by which the paper ishung up in the drying-room is so timed that a regular forward feeding ofthe paper in the drying-room takes place.

The coloremployed in making the transfer graining-paper is of such anature that a number of transfers can be made from the same, which isgraduated by the depth of the pattern engraved on the pattern-cylinderA.

Bymyimproved machine the transfer graining-paper for painters use can bemanufactured by a continuous process, so that it can be furnished inrolls of considerable length and at a cheaper rate than by the methodsheretofore in use.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- A machine for making transfer grainingpaper,consisting of an engraved pattern-cylinder, a color feeding anddistributing device, a transfer-cylinder rotating in contact with thepattern-cylinder, a heating device below the transfer-cy1inder, ametallic cleaningroller rotating in contact with the transfercylinder,guide-rollers for the paper to be printed, and a feed device applied tothe under side of the grained paper, substantially as set forth.

In testimony thatI claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

CASPAR DAI'IM. Witnesses:

PAUL GOEPEL, A. M. BAKER.

